Summary: | In the title compound, C16H16N4OS, the dihedral angle between the pyridine and benzene rings is 81.08 (6)°. The pyrazole ring makes dihedral angles of 12.36 (7) and 87.96 (6)°, respectively, with the pyridine and benzene rings. In the crystal, molecules are linked by N—H...O and N—H...S hydrogen bonds and a weak C—H...S interaction into a layer parallel to the ab plane. Weak C—H...π and π–π interactions [centroid–centroid distances = 3.7043 (9) and 3.8120 (7) Å] are also observed.
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